Ransburg Evolver 202 Solvent A11918-XXX - Manual (Page 28)

AA-07-01 2 3 2 3 2 3 2 3 2 3
Evolver 202 Robotic Atomizers - Operation
OPERA OPERA OPERA OPERA OPERATION TION TION TION TION
SPRA SPRA SPRA SPRA SPRAY Y Y Y Y APPLICA APPLICA APPLICA APPLICA APPLICAT T T T TOR OR OR OR OR
CONTROLS CONTROLS CONTROLS CONTROLS CONTROLS
Atomization Air (SA/AA) / Atomization Air (SA/AA) / Atomization Air (SA/AA) / Atomization Air (SA/AA) / Atomization Air (SA/AA) /
Fan Air (SL.A/F Fan Air (SL.A/F Fan Air (SL.A/F Fan Air (SL.A/F Fan Air (SL.A/F.A) .A) .A) .A) .A)
The atomization and fan air are turned on by the
trigger line and are controlled by an internal air
valve located in the applicator head. During nor-
mal operation with applicator triggered off, there is
a slight bleed of air through the atomization port.
Atomizing Air Atomizing Air Atomizing Air Atomizing Air Atomizing Air
Adjustments are made through the robot PLC or a
manually adjustable air regulator. The lowest air
pressure required to break up the paint should be
used. Lower atomizing air pressures result in less
overspray and increased transfer efficiency.
Fan Air Fan Air Fan Air Fan Air Fan Air
Adjusting the fan air increases or decreases the
size of the spray pattern. Increasing pressure
increases pattern size. Pattern adjustment should
be made to suit the size and shape of the object
being painted. This adjustment is made through
the robot PLC or a manually adjustable air regula-
tor.
Air cap atomization and fan pressures should be
set and recorded using an air cap test kit. This
provides a consistent measurement, so initial
settings may be duplicated at any time. (See
"Accessories" in the "Parts Identification" sec-
tion.)
FLUID V FLUID V FLUID V FLUID V FLUID VAL AL AL AL ALVE CONTROLS VE CONTROLS VE CONTROLS VE CONTROLS VE CONTROLS
T T T T Trigger rigger rigger rigger rigger, Dump, and Solvent , Dump, and Solvent , Dump, and Solvent , Dump, and Solvent , Dump, and Solvent
(S (S (S (S (See ee ee ee ee F F F F Figure igure igure igure igure 8) 8) 8) 8) 8)
The fluid valves in the Evolver 202 are actuated by
an air signal. The air pressure must exceed 70 psi
(4.8 bar) to assure proper actuation of the valve.
Applying air to the valve actuator turns on the fluid
flow for that valve.
The paint valve controls the paint flow to the
applicator. When actuated, paint flows through
the valve to the coiled fluid tube and into the spray
head.
The dump valve controls the paint flow through the
dump line. When actuated, paint flow is directed to
the dump return line. This provides a method of
rapidly removing paint from the incoming line for
cleaning and/or color change. Normally, the dump
valve is not actuated at the same time as the paint
valve since the paint valve is intended to cause the
fluid to flow to the applicator head at the prescribed
input pressure.
The solvent valve controls the flow of cleaning
solvent to the applicator. When actuated, solvent
flows through the fluid tube and into the spray
head. The solvent valve is not triggered at the
same time as the paint trigger valve to prevent
solvent from flowing backward into the paint line.
HVLP HVLP HVLP HVLP HVLP SPRA SPRA SPRA SPRA SPRAY Y Y Y Y
The Evolver 202 HVLP models, when properly
set-up, are designed to provide maximum transfer
efficiency by limiting air cap pressures to 10 psi
(0.7 bar) (in the U.S., this complies with rules
issued by SCAQMD and other air quality
authorities). Air cap pressures should be measured
with an optional air cap test kit. (See "Accessories"
in the "Parts Identification" section.)
> For HVLP operation (max. 10 psi, 0.7
bar cap pressure), DO NOT DO NOT DO NOT DO NOT DO NOT exceed the
air inlet pressure, which was read at the
gun base before the tubing manifolds,
given as follows:
P S I P S I P S I P S I P S I (Bar) (Bar) (Bar) (Bar) (Bar) CAP # CAP # CAP # CAP # CAP #
42 (2.9) 48-1
42 (2.9) 481-1
NOTE NOTE NOTE NOTE NOTE
ARCHIVE